Add generic-nios2 machine to meta-altera

Add support for the Altera NIOS2 architecture and a generic machine config.
Also add Linux kernel defconfig for linux-yocto 4.1 package.

Heavily based on work by Walter Goossens <waltergoossens@home.nl>

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Khem Raj <raj.khem@gmail.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Thomas Chou <thomas@wytron.com.tw>
Cc: Walter Goossens <waltergoossens@home.nl>
Cc: Yves Vandervennet <yvanderv@opensource.altera.com>

2 files changed, 99 insertions, 0 deletions

diff --git a/recipes-kernel/linux/config/generic-nios2/defconfig b/recipes-kernel/linux/config/generic-nios2/defconfig
new file mode 100644
index 0000000..7d712aa
--- /dev/null
+++ b/recipes-kernel/linux/config/generic-nios2/defconfig
@@ -0,0 +1,82 @@
+CONFIG_SYSVIPC=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_SYSCTL_SYSCALL=y
+# CONFIG_ELF_CORE is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_SHMEM is not set
+# CONFIG_AIO is not set
+CONFIG_EMBEDDED=y
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MEM_BASE=0x10000000
+CONFIG_NIOS2_HW_MUL_SUPPORT=y
+CONFIG_NIOS2_HW_DIV_SUPPORT=y
+CONFIG_CUSTOM_CACHE_SETTINGS=y
+CONFIG_NIOS2_DCACHE_SIZE=0x8000
+CONFIG_NIOS2_ICACHE_SIZE=0x8000
+# CONFIG_CMDLINE_IGNORE_DTB is not set
+CONFIG_PASS_CMDLINE=y
+CONFIG_BOOT_LINK_OFFSET=0x00800000
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_IP_PNP_RARP=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_FW_LOADER is not set
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_NETDEVICES=y
+CONFIG_ALTERA_TSE=y
+CONFIG_MARVELL_PHY=y
+# CONFIG_WLAN is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO_SERPORT is not set
+# CONFIG_VT is not set
+CONFIG_SERIAL_ALTERA_JTAGUART=y
+CONFIG_SERIAL_ALTERA_JTAGUART_CONSOLE=y
+CONFIG_SERIAL_ALTERA_UART=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_ALTERA=y
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+CONFIG_JFFS2_FS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_ROOT_NFS=y
+CONFIG_SUNRPC_DEBUG=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+CONFIG_KGDB=y
diff --git a/recipes-kernel/linux/linux-yocto_4.1.bbappend b/recipes-kernel/linux/linux-yocto_4.1.bbappend
new file mode 100644
index 0000000..06bec2c
--- /dev/null
+++ b/recipes-kernel/linux/linux-yocto_4.1.bbappend
@@ -0,0 +1,17 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/config:"
+
+COMPATIBLE_MACHINE_generic-nios2 = "generic-nios2"
+SRC_URI_append_nios2 = " file://defconfig "
+
+# Force machine Tunings in kernel config
+do_configure_prepend_nios2() {
+    sed -i -e /CONFIG_NIOS2_HW_MUL_SUPPORT/d ${WORKDIR}/defconfig
+    sed -i -e /CONFIG_NIOS2_HW_MULX_SUPPORT/d ${WORKDIR}/defconfig
+    sed -i -e /CONFIG_NIOS2_HW_DIV_SUPPORT/d ${WORKDIR}/defconfig
+    sed -i -e /CONFIG_NIOS2_FPU_SUPPORT/d ${WORKDIR}/defconfig
+    echo "${@base_contains('TUNE_FEATURES', 'hw-mul',  'CONFIG_NIOS2_HW_MUL_SUPPORT=y', '#CONFIG_NIOS2_HW_MUL_SUPPORT is not set', d)}" >> ${WORKDIR}/defconfig
+    echo "${@base_contains('TUNE_FEATURES', 'hw-mulx', 'CONFIG_NIOS2_HW_MULX_SUPPORT=y',   '#CONFIG_NIOS2_HW_MULX_SUPPORT is not set', d)}" >> ${WORKDIR}/defconfig
+    echo "${@base_contains('TUNE_FEATURES', 'hw-div',  'CONFIG_NIOS2_HW_DIV_SUPPORT=y',    '#CONFIG_NIOS2_HW_DIV_SUPPORT is not set', d)}" >> ${WORKDIR}/defconfig
+    echo "${@base_contains('TUNE_FEATURES', 'fpu-custom', 'CONFIG_NIOS2_FPU_SUPPORT=y',    '#CONFIG_NIOS2_FPU_SUPPORT is not set', d)}" >> ${WORKDIR}/defconfig
+    echo "${@base_contains('TUNE_FEATURES', 'fpu-customdiv', 'CONFIG_NIOS2_FPU_SUPPORT=y', '#CONFIG_NIOS2_FPU_SUPPORT is not set', d)}" >> ${WORKDIR}/defconfig
+}